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BabyG1353
15.10.2020 •
Mathematics
What is the value of x in the equation x3=27/125 ?
81/375
9/42
3/25
3/5
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Ответ:
longest side must be less than the sum of the legnths of the other 2 sides
if we assume that 7 is longest then missing side is x so
3+x>7
minus 3
x>4
whole number to satisfy is
x=5
if we assume the missing side is the largest
3+7>x
10>x
x is 9 at most
if the third side is not the longest side, it can be 5 at minimum
if the third side is the longest side, it can be 9 at max
so the third side can be 5,6,7,8,9 ft